Screening device for spray-pumps.



PATENTED FEB. 25, 1908 EL W. OVERHISER. SOREBNING DEVICE FOR SPRAYPUMPS.

vAPPLIGLK'I'ION FILED JUL'1'19.1907.

.iiLBERT W. OVERHISER, OF (EA-8C0, MICHIGAN.

SCREENING DEVICE FOR SPRAY-YUMPS.

liIo. ceases.

Specification of Letters Patent.

Patented Feb. 25, 1908.

llpplicatiou filed July 19.1907. Serigltllo. 384596.

T 0 all whom it may concern:

Be it known that l, ALBERT W. Ovnnmenu, a citizen oithe United States,residing in the township of Casco, county of Allegan, State of Michigan,have invented cer- 'tain new and useful Improvements in Screen providean improved straining or screening device for use on spray pumps and thelike by which the clogging of the suction pipe of the nu ip isprevented, and also a screening device which is automatically cleaned orfreed from sediment by the operation of the pump.

Further objects and objects relating'to de tails of construction Willdefinitely appear from the detailed description to follow.

l accon'iplish the objects of my invention by the devices and meansdescribed in the following speci'ication.

The invention isclearly defined and pointed out in the claims.

A structure embodying the features of my invention is clearlyillustrated in the accompanying drawing, forming a part of thisspecification, in which,

Figure 1 is a conventional view of a pump showing the relation of myimproved screening device thereto; Fig. 2 is a side elevation of astructure em bodying the features of my invcnti on; Fi 3 is an endelevation thereof; l' irg". lis a detail longitudinal sectiontheretlirough taken on a line corresponding to line 3-3 of Fig and isenlarged detail taken on a line corresponding: to line 4-4 of Fig. 3,showing the supporting legs of the strai In tlie drawings similarreference characters refer to similar parts throughout the severalviews, and the sectional views are taken looking in the direction of thelittle arrows at the ends of the section lines.

Referring to thedrewing? 3. represents a pump, the same being shown inconventional form. This pump is of the type having a suction pipe as 2and a return pipe as 3, the return pipe being designed to deliver intothe tank containing the sprsyingsolution, there by keeping the solutionproperly agitated.

My improved screening or spraying device preferably consists of a block4 having pipe openings 5 and 6 tberetbrough adapted to receive the endsof the suction and return pipes respectively. The block 4 is supportedon suitable legs as 7, these legs being preferably formed of Wirebentinto loop form, as illustrated in Fig. 3, theendsof the Wire beinginserted into the blocks for securing the legs thereto. See Fig. 5. Onthe under side of the block I secure a screen 8 forming a screening orstraining chamber. This screen is preferably formed of a iece of Wirenet or screen folded to form a c amber, the block a forming the topthereof. The screen is secured to the block preferably byrneans of aband 9 Wrapped about the same and secured to the block by means ofnails'or brads 10. This construction, is a very economical. one and atthe same time is found to be entirely satisfactory in practice. The pipe0 enings 5 and 6 are preferably arranged tl irough the block so that thereturn pipe 3 delivers at an angle across the mouth of the suction pipeand also at an angle across the bottom of the screening chamber. Thisprevents the collection of sediment at the mouth of the suction pipe, asat each stroke of the pump a portion of the charge is deliveredbaok'into the pump and also by deliv ring at an angle to the bottom ofthe screen chamber frees the same from obstructions. Thisarrangementalso insures the proper agitation of the spraying solution atthe mouth of the suction tube.

It will be obvious that my improved screening or straining device, isvery simple in construction and at the same tinie it is highly effectivefor the purpose for which it is designed.

l have illustrated and. described the same in detail in the formpreferred by me on account of its structural simplicity. I am, however,aware that it is capable of very great variation in structural detailsWithout departing from rnviuvention, and I desire to be understood asclaiming the same broadly as Well as specifically, as illustrated.

Having thus described my invention, What 25 v mouth of the suction pipeand stain angle to 40 tion and return pipe therefor; a strainer com- Iclaim as new and desire to secure by Letters Patent is:

1. The combination 'with a pump, ofa suction and return pipe therefor; astrainer comprising a block having a pair of pipe openings therethroughin which said suction and returnpipes are arranged supporting le s forsaid block, and a screen secured to said block to form, a screeningchamber on the under side thereof, said pipe openings of said blockbeing arranged at an angle to each other so that the said return pipedelivers into the screening chamber across the mouth of the suction pipeand at an angle to the bottom of the screening chamber.

2. The combination with a-pump, ofa suction and return pipe therefor; a'strainercornprising a block having a pair of pipe openings therethroughin which said suction and re turn pipes are arranged; and a screensecured to said block to form a screening chamher on the under sidethercof,;said pipe openings of said block bein arranged at an an 1e toeach other so that t c said return pipe elivcrs into the screeningchamber across the p the bottom of the screening chamber.

3. Thecombination with apump of a suction and return pipe therefor; astrainer comprisinfibiock having a pair of pipe openings theret ough inwhich saidisuction and return-"pi es are arranged supporting is s forsaid block, and a screen secured to said loch to form a screeningchamber on the-under side thereof, said pipe openings of said blockbeing arranged at an angle to each otherso that the said return pipedelivers into the screening chamber across the mouth of the suctionpipe.

4. The combination With a pump, of a sucprisin a block having a pair ofpi openings ther'et rough in which said suctiiin and return pipes arearranged;'and a screen secured to said block to forma screening chamheron the under side thereof, said pipe openings of said block beinarranged at an, angle to each other so that t e said return pipedelivers into the screening chamber across the mouth of the suctionpipe.

5.. The combination with a pump, ofa suction and return pipe therefor; astrainer comprisin a block having a pair of pipe openings theret roughin which the said suction and return pipes are arranged; supporting le Sfor said block, and a screen secured to said lock to form a screeningchamber 6. The combination with a pump, of a sue tion'and return pipetherefor; a strainer coma block having a pair of pipe openings" tion anda return pipe there or a screening.

chamber towhich said suction and return pipes are connected, so that thesaid return pipe delivers into the screening chamber across the mouth ofthe'suction pipe,

9. The combination with a pumpof a suction and return pipe therefor; astrainer to which said suction and'return pipe are connected, comprisinga screen, said return pipebeing arranged to deliver to said screen at anan 10 thereto.

nwitness whereof, I have hereunto set my 85 hand and seal in thepresence of .two wit nesses.

Witnesses: H. T. 0001:,

; WILLIAM Ovnmnsnn.

.AIJBERT w. OVERHISER. [it

